<!DOCTYPE html>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<html>
<head>
  <style>
    div.flexbox {
      border: 2px dotted lightgray;
      width: 400px;
      height: 40px;
      margin-bottom: 10px;
    }
    div.flexbox > * {
      width: -moz-available;
      outline: 1px dashed black;
      margin: 0;
      vertical-align: top;
      display: block;
    }
  </style>
</head>
<body>
  <div class="flexbox"><input type="button"></div>
  <div class="flexbox"><input type="checkbox"></div>
  <div class="flexbox"><input type="file"></div>
  <div class="flexbox"><input type="image"></div>
  <div class="flexbox"><input type="password"></div>
  <div class="flexbox"><input type="radio"></div>
  <div class="flexbox"><input type="reset"></div>
  <div class="flexbox"><input type="submit"></div>
  <div class="flexbox"><input type="text"></div>
</body>
</html>
